Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea23662f0a474498…

MALICIOUS

PDF

42.2 KB Created: 2020-11-09 11:14:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 36af5690e28a22891dbfbcafbb2d14f6 SHA-1: d569641023f6dee61fed258c73e3280e2eae40d1 SHA-256: ea23662f0a474498f8c20dd10352b6aabf364e7293cde2517ed65e026849cd53
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://traffset.ru/aws?keyword=facts+about+caribou+moss PDF link annotation
    • https://tenasusuboziwid.weebly.com/uploads/1/3/4/3/134349012/c20f3d000.pdfIn PDF document text
    • https://pejilajapife.weebly.com/uploads/1/3/4/4/134477767/394dd817.pdfIn PDF document text
    • https://xoxajunun.weebly.com/uploads/1/3/4/3/134351876/kajamibewudug_favokifani.pdfIn PDF document text
    • https://wusoxebuwewete.weebly.com/uploads/1/3/4/4/134432123/95bc8cf8.pdfIn PDF document text
    • https://nogusevufofe.weebly.com/uploads/1/3/4/5/134525370/vepuzosobupov.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393041/normal_5f9c238b9aa17.pdfIn PDF document text
    • https://pepusaneped.weebly.com/uploads/1/3/4/5/134503703/doguv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/0bc9ccdf-75d0-4b5c-b43f-53be7a1c9a3f/2893340398.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea682f79-34cc-4ae8-8bfb-e1843ba77234/1548071845.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/886b294d-6b6a-4d11-96f0-892876da5f04/volvo_xc60_hybrid.pdfIn PDF document text
    • https://s3.amazonaws.com/fogibi/gucci_outlet_store_palm_springs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6697e9d-1a2c-4225-98e4-d48b30844f90/69452185551.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000670e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x670E 5008 bytes
SHA-256: 08d9ab1b2f62e398b1ae84c72153c93559f0fe32e7c61c81009ade1b95602a08
font_01_sfnt_off00007802.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7802 10624 bytes
SHA-256: 09ba4966013db417e3f3011d3af6ac5b04205895523e007179b7ec9bf0463d46